Fungemia
(Redirected from Fungaemia)
Fungemia is a medical condition characterized by the presence of fungi or yeast in the bloodstream. It is a form of bloodstream infection that can range from mild to severe, depending on the immune status of the individual, the type of fungus involved, and the promptness of diagnosis and treatment. Fungemia is often a critical condition that requires immediate medical attention, as it can lead to widespread organ dysfunction, known as disseminated fungal infection, and can be fatal if not treated promptly.
Causes and Risk Factors[edit | edit source]
Fungemia is most commonly caused by the Candida species, including Candida albicans, Candida glabrata, and Candida parapsilosis. Other fungi that can cause fungemia include Cryptococcus species and molds such as Aspergillus species. The condition occurs when fungi enter the bloodstream, which can happen through medical devices such as central venous catheters, during surgery, or from an infection in another part of the body that spreads to the blood.
Risk factors for fungemia include:
- Prolonged use of antibiotics that disrupt the normal flora of the body
- Having a weakened immune system due to conditions such as HIV/AIDS, cancer, or taking immunosuppressive drugs
- Recent surgery, especially abdominal surgery
- Use of central venous catheters or other invasive devices
- Being in the intensive care unit (ICU) for an extended period
- Having a history of fungal infections
Symptoms[edit | edit source]
Symptoms of fungemia can be nonspecific and may include:
- Fever and chills
- Fatigue
- Muscle aches
- Rash
- Difficulty breathing
- Changes in mental status
Because these symptoms can also be associated with a variety of other conditions, diagnosis can be challenging.
Diagnosis[edit | edit source]
Diagnosis of fungemia involves a combination of clinical assessment and laboratory tests. Blood cultures are the gold standard for diagnosing fungemia. Multiple blood samples are taken and incubated to check for the growth of fungi. Other tests may include imaging studies to identify the source of infection or the extent of any organ involvement.
Treatment[edit | edit source]
Treatment of fungemia typically involves antifungal medications. The choice of antifungal depends on the type of fungus causing the infection, the severity of the infection, and the patient's overall health. Commonly used antifungals include fluconazole, amphotericin B, and echinocandins. In some cases, removal of infected central venous catheters or other invasive devices is necessary. Treatment duration can vary from a few weeks to several months, depending on the severity of the infection and the patient's response to therapy.
Prevention[edit | edit source]
Preventive measures for fungemia include meticulous care of central venous catheters, judicious use of antibiotics to avoid disruption of normal flora, and prompt treatment of any fungal infections. In high-risk patients, prophylactic antifungal medications may be considered.
Complications[edit | edit source]
If not treated promptly, fungemia can lead to serious complications, including:
- Endophthalmitis, an infection inside the eye
- Endocarditis, an infection of the heart valves
- Osteomyelitis, an infection of the bone
- Disseminated fungal infection, affecting multiple organs
Prognosis[edit | edit source]
The prognosis for individuals with fungemia varies depending on the underlying cause, the promptness of diagnosis and treatment, and the patient's overall health. With appropriate treatment, many patients recover fully, but the mortality rate remains high, especially in those with weakened immune systems.
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Contributors: Prab R. Tumpati, MD